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LSU defensive end Andre Anthony (46), right, stiff arms LSU defensive end Seth Newsome (59), left, during a drill at LSU football practice Thursday March 30, 2017, in Baton Rouge, La..

LSU’s edge-rushing position took another hit this week.

Andre Anthony, one of three candidates vying to replace injured All-American Arden Key, suffered an injury in practice and is unlikely to play in Saturday's season opener against BYU, coach Ed Orgeron said Thursday in his final news conference before the game.

Redshirt freshman Ray Thornton and true freshman K’Lavon Chaisson are competing for the starting spot, and coaches expect that to be a game-time decision. Thornton and Chaisson were ahead of Anthony in that competition, the coach said earlier during camp. He expected all three to play.

“Andre Anthony sustained an injury during the week, so he’s probably not going to play,” Orgeron said. “It’s a toss-up right now (between Chaisson and Thornton). I’ll make a decision before game time.”

Anthony’s departure is another blow for that spot. Key, the usual starter, is still recovering from shoulder surgery, and Sci Martin has missed practice over the past several days. Isaiah Washington also played at the Buck, but he transferred over the summer.

The position’s depth is such that coaches moved Thornton this offseason from F-outside linebacker to the Buck position, a hybrid defensive end/outside linebacker role. 

Follow Ross Dellenger on Twitter, @RossDellenger.